chelation therapy
The judicious use of chelating (metal binding) agents for the removal
of toxic amounts of metal ions from living organisms. The metal ions
are sequestered by the chelating agents and are rendered harmless or
excreted. Chelating agents such as 2,3-dimercaptopropan-1-ol,
ethylenediaminetetraacetic acid, desferrioxamine and D-penicillamine
have been used effectively in chelation therapy for arsenic, lead, iron
and copper, respectively.
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